Braiding die



A. PETERSEN Oct. 2 ,1923.

BRAIDING DIE Filed Aug.

1720672702 drzker 1 656715022 Oct. 2, 1923. v

A. PETERSEN BRAIDING DIE Filed Aug. 16. 1922' 2 Sheets-Sheet 2 if: ire? fiirs 022 .ferred embodiment of the Patented st. 2,1923.

Amine rnrnasnn, or WINTER-OP, MAssAoHUsnr'rs.

BRAl'DI-NG Din.

Application filed August 16,1922. seria ivo ssaics.

To all whom it may concern: 7 7

Be it known that I, ANKER PETERSEN, a

citizen of the United States of America, and

resident of Winthrop, in the county of Suf- Massachusetts, have infolk and State of vented new and useful Improvements in Braiding Dies, of which the following is a specification.

The present invention concerns braiding machines of that type employed in the manufacture of braided cord or thread and relates more particularly to means for ensuring uniformity of tension .inthe strands;

of the finished braid.

I The principal object ofthe present invention is to provide an improved form of braiding die or condenser, comprising means for retarding or holding back any slack portion or bight of a. strand or strands as they are intertwined at the braiding point,'thus to ensure substantially uniformtension in each strand of the finished braid as the latter is drawn off by the take-up device,but so constructed and arranged as to permit the passage of knots or slubs, without putting undue strain upon the strands, and to pro vide means whereby the die or condenser may be heated if desired for imparting a set to the strands comprisingthe braid and for giving a finished appearance to the latter.

In the accompanying drawings a '.pre-

invention is illus trated and in such drawings a Fig. 1 is a fragmentary side elevation of a braiding machine such as is shown in the patent. to Petersen, No. 1,413,773 dated April 25, 1922, device of the present invention being shown as 7 applied thereto;

Fig. 2 is a fragmentary horizontal cross section on the line 2-42 of Fig. 1' and indicating the position of the braiding die forming the subject-matter of the present application;

Fig. 3 is a vertical diametral cross section' to large scale showing theimproved braidin die ig. 4 is a transverse cross section on ,thel

line l4ofFig.3;

Fig. 5 is'a perspective view of the braid compressing blade constituting an essential.

feature of the improved die;

. Fig. 6 is a employed for F ig 5;

; braiding frame 7 is wheel 9 which of well known type and leaf spring of bow form is perspective view ofv 'a' spring actuating theblade shown in sectionthrough the braiding die tolarger scale showing the formof the inner edge of the blade; and r 7 Fig. 8 is a fragmentary diametraljcross section illustrating the lower part of the die onan enlarged scale and indicatingthe position ofthe braiding point and of the braid as it passes through the die.

Referring to the drawings the numeral 1 indicates the circular frame of the machine supported upon legs 2 and having the circular disk-like support 3 constituting a track along which the braiding carriers 4: (Fig.

2) of the inner series may travel." The numeral 5 indicates the support for'the outer series of braiding carriers 6. I An upper provided which bridges the ma- Fig.7 is a fragmentary, transverse cross i chine and hasa bracketS inwhich the upper end of the braiding die may beclamped, This upper frame also supports 'the take-up may bedriven in any suitable manner and which may be provided with a countingmechanism 10 if desired. v

Referring more 8, the improved die is shown as comprising a substantially cylindrical elongate member l1v having an. axial-bore or ,passage; 12 through which the braid may travel, A radial slot l3'extends outwardly from one, side of this passage to the exterior of the member 11. This slot is somewhat narrower at its inner portion and has a movable'blade 14 fitting within such narrow portion; This blade is of substantiallythe. same length asthe member 11 and is grooved "at itsinner edge to provide an arcuate surface'15 constituting aportion o'fthef side wall-of the passage 12. The upper end ofthe blade 14 is preferably made som ewhat widerthan the, l A

r mainder as indicated at;16 (FigSfl n of the "blade'is' chamwhile the lowerend fered on at 17 to facilitate the movement oftlie blade as will hereinafterfbe described, Preferably also the lower end of ,the, channel;

particularly to Figs. 3 to V or groove 15 is' flared outwardly as shown at 18 (Fig. 8) to facilitate the entrance of the braid. At a point intermediate its'length,

and preferably above its central point, the

A laminated seated within the outer and widened portion 21- of the slot 13. Thisspring bears "againsothe projection 19 upon its outer edge.

blade 14 isiprovided with a hump or projection 19 at a point intermediate its endsand 7 .hasits opposite extremities p member 11. These caps thus serve the member there intertwined to form the braid B.

be subjected 0f the same diameter,

breaking of strands and thus pressing it against the braid.

*lower end or braiding point;

tively, bearingagainst the inner walls of a pair of caps 24, 25 fitting snugly over the and lower ends respectively of the to retain the spring 20 within the slot'and indirectly to prevent escape of the blade l l' from the slot. The cap 24: is provided at its end with an opening 26 for the passage of the braid, this opening aligning with the passage 12 in 11. The lowercap is "provided with a beveled end surface 27 and has an opening 28 in its end aligning with the passage 12 in strands fail to bear their due proportion of which the finished braid may By the, employment of' the present device each strand as it arrives at the braiding point is retarded in its movement by reason of 14: against the braid, this pressure serving to hold back any strand which may be slack, so that as the several strands emerge from the braiding die in the'finished braid they all have substantially the same tension. If the strands were alwaysperfectly smooth p and free from knots or slubs, it might be possible to secure the desired result by passingthe braid as it any strain to leaves the brading point through a re stricted channel or passage having immovable side walls but as knots or slubs are he 'quently incorporated in the stands such an arrangement would quickly result inthe the braid or of individual the movable blade has been provided with the spring for resiliently It is desirable however, that su'ch blade besubjected to considerable pressure in order to secure the desired' results and to permit of such ressure while at the same time to allow the blade to' move outwardly under the impact of a ;knot or slub, it is preferred to causethe spring to bear upon the blade at a single pointso thatfthe blade is free to rock aboutthispoint as a fulcrum as the knot or slub traversesthe' passage 12 and it "is further preferred to arrange the fill- 'crum point nearer to that end, of the .die

from which the bra-ll emerges-than to the VJith such .22, 23 respec- 11. The beveled the pressure of the blade the die at an arrangement the entering slub or knot acts wltha long leverage'to swing the blade outwardly, thus avoiding any sudden strain. upon the individual strandand permitting the knot or slub gradually to be compressed as, the braid traverses the passage 12 so that by the time 'it reaches the fulcrum. point there is little -danger of subjecting the strand to sufficlent strain to cause its breakage;

ing entrance 18 to the channel 15 serves to. avoid any retention of knots or slubs entering -point. 7

In Fig. 1 a heating coil 30 is shown as surrounding the cylindrical member '11, this heating coil comprising a plurality of turns of insulated electric wire mounted between the heads 31 and 32. These heads are preferably positioned by engagement with the. inner ends of the caps 24, 25 respectively. Lead wires extend from the coil and may be connected with suitable source of electrical energy. the use of a heating coil at this point the strands forming the braid may be given a permanent setso that they tend to retain their relative positions in the braid, thus manner is of particular advantage when one or more .of the strands forming the braid are caused topass through a sizing bath or other conditioning medium prior to incorporation in the braid, as in this case the heated die may be caused'to produce a glossy finish upon the braid adding very materially to its appearance and its desirability as a sewing thread. hile an electric heating coil is herein disclosed it is evident that a steam coil or 'in fact any other desired heating means might be employed for the purpose.

VVhatI claim and desire to secure by Letters Patent of the United States is:

11 A braidingv die comprising. an elongate member having an axial opening for against said element at a single point disv posed substantially nearer to one end thereof than the other.

i 2. A braiding dier comprising an elon gate member'lhaving a longitudinally extending r opening braid; a bodily mg one side wall of saidfopening, and a for the passage of" the spring bearing against'sa idelement at a point substantially nearer to that end of which the braid leaves it than to the other end thereof.

3. A braiding die comprising an'elongate cylindrical member having an axial In order to facilitate the swinging I of the blade the lower end' thereof is chamfered off as shown at ll' while the liar at the movable element constitutnearerone end thereof than'the other and 7 tending to move said member radially inward.

at. A braiding die comprising a cylindrical member having an axial passage for the braid and a radial slot leading into said passage, an elongate blade within said slot,

means engageable with opposite ends of said blade for preventing its escape from the slot, and a spring bearing against the outer edge of said blade at apoint nearer to one end thereof than to the other.

5. A braiding die comprising an elongate member having a longitudinal passage for the braid, a movable blade having an edge constituting a portion of :the side wall of said passage, and a leaf spring of bow form having an intermediate portion thereof bearing against said blade at a point nearer one end thereof than the other, and means for positioning the opposite extremities of said spring.

6. A braiding die comprising a cylindrical member having an axial passage and a radial slot merging into said passage and extendin from end to end of said member, a blade fitting within said slot and having an arcuate inner edge constituting a portion of the wall of said passage, said bladehaving a projection upon its outer edge, and a spring bearing against said projection for bodily moving said blade radially inward.

7.A braiding die comprising a member having an elongate passage for braid, a blade extending longitudinally of said passage, and resilient means reacting against said blade for urging it bodily in a radial direction to restrict the passage, the parts being so constructed and arranged that the blade may rock freely for permitting the free passage of knots or slubs in the braid.

8. A braiding-die comprising a member having a passage for the braid, an elongate bladehaving an edge constituting a part of the side wall of said passage,'and a spring bearing at a single point intermediate the length of such blade and urging it in a direction to compress the braid, the point of engagement of the spring with the blade constituting a fulcrum about which the blade may freely swing tofacilitate the passage of knots or slubs in the braid. i

9. A braiding die comprisinga member. having an elongate passage for the braid, a blade having an edge constituting one side wall of said passage, and having a projec-. tionv uponits opposite edge, said projection. Jeing nearer that end of the die at which the braid leaves than to the end at which it pro ection, the latter constituting a cylindrical member enters,-and a lafspring bearing upon said fulcrum about which the blade is free to swing'to facilitate the passage "of enlargements in the braidr 1 v 10.,A. braiding 'die comprising cylindrical member having an axial passage for the braid and a radial slot leading into said passage, an elongate blade seated in said.

slot,.me ans engageable with opposite ends of said blade to prevent its escape from the slot, said blade havin r a projection upon its outer edge disposed nearer that end of the die at which the braid leaves than to the other, and a bow spring having its opposite ends" bearing against said blade retaining means and an intermediate portion thereof bearing against said projection.

11. A braiding die comprising a member having a passage for braid and an elongate slot communicating with said passage, a bodilyniovable blade fitting within said slot, and a spring ly toward the passage, the reaction of the spring against the blade being less effective at that part of the blade which lies adjacent to the end of the die at which the braid enters than at the other end.

12. A braiding die comprising a cylindrical member having an axial passage for braid and a radial slot communicating with said passage, a blade fitting within said slot and extending longitudinally thereof an apertured cap fitting over each end 0 said member and respectively overlapping the opposite ends of the blade to prevent its escape from the slot, the aperture on one of said caps determining the braiding point, and a bow spring having its opposite ends seated beneath the edges of the respective caps and having an intermediate portion thereof bearing against said blade at a point nearer to that end of the die which is remote from the braiding point than to'the other end thereof.

13. A. braiding die having restricted passage for'the braid, and means for heatingsaiddie whereby to impart a set to the strands forming the braid.

14. A braiding die having a restricted passage for the braid, and a heating coil surrounding said die for heating it.

15. 'A braiding die comprising a' cylindrical member having an axial passage for the 1 braid, a resiliently actuated element associated with saidpassage for compressing the braid as'it passes therethrough, a cap fitting over each end ofsaid member and constituting retaining means forsaid element, and an 0011 surrounding said and positioned between electrical heatin said caps. V

16. A braiding die comprising a cylindrical member having an axial passage for the'braid and a radial slot leading into said urging said. blade inwarding against the outer edge of said blade, a heatlng c011 surrounding sa d eyhndrlcal member, and a pint of eaps fitting: over opposite ends of said member and serving tovretain said blade and'springlin' Operative position, and to position the heating e011,

7 one of said capsdefining the breaking point. 10/

Signed by-me at Boston, Massachusetts, this ninth day of August, 1922.

ANKEB PETERSEN.

Certificate of Correction.

It; is hereby certified that in Letters Patent No. 1,469,530, granted October 2, 1923, upon the application of Anker Petersen, ofVVinthrop, Massachusetts, for an improvementin Braiding Dies, an error appears in the printed specification requiring correction as follows: Page 4-, line 10, claim 16, for the Word breaking read braiding, and that the said Letters Patent should he read with this correcgon therein that the same may conform to the record of the case in the Patent Signed and sealed this 4th day of December, A. D., 1923.

[SEAL] KARL FENNING,

Acting flommz'ssioner 0/ Patents. 

